Caster



(Mdel.)

. M.B. SGHE'NCK.

l A 1 GASTBR.V A

110.3815173. PatentedApr. 17,1888.

extends through said plate. g gated and passes through an axial perforation UNITED STATES MARTIN B. sCnENCK,-CF MERIDEN, CONNECTICUT; l, Y f` PATENT (9T-Irion.l 1

CAsTi-:ag

SPECIFICATION forming part yof Letters Patent No. 381,173, dared April 17,1888. Application filed September 3, 1887. vSerial No. 248,729. (Model.) f Y To a'ZZ it may concern.: Y

Be it known that I, MARTIN B. SCHENCK, a

citizen of the United States, residing at Meriden, county of New Haven, and State of Goning is aspecification. t i

My inventionl consists of a wheel-housing the roller-plate of which is provided with an upwardly-projecting -annular' flange situated at adstance from the rim of the plate, between which iiange and a downwardly-,projecting annular fiange on the base-plate the rollers are situated.- The base-plate has an axial bossl provided with a perforation that The boss is elonin the housing-plate, and projects so far ben yond said plate that the spindle-head will not touch the housing-plate when fastened to the base-plate, thus preventing the binding of the wheels, as the spindle-head bearsr only on the end of said boss.

In order that my invention may befully understood, I will proceedto describe the same, with reference tothe accompanyingpdrawings, j in which- Figure I is a vertical sectional view Vof a caster embodying my improvements. Fig. II is a perspective view.

Referring to said drawings, 1 represents the? hoor-wheel housing, carryingwheel or roller 2, the plate 3 of said housing having an axial perforation, 4. lProjecting upwardly and situated at a suitable distance from the rim of projecting annular fiange, 6, on the base-plate- 7 are situated theanti-friction rollers 8, said iianges being concentric. These flanges and I A housing-plate provided with an axial perfora- 6 prevent dust or other obstruction getting in under the rollers. What little dust might rest on the rim of the housing-plate exposed is worked off by the operation of the-rollers in the movement ofthe caster.

Anaxial elongated boss, 9, on the under side of base-plate 7, having a perforation, 10,

which extends through the base-plate, is reeeived .by the perforation 4 in the housingA plate and extends aslight distance beyond the same. As said boss extends beyond the housing-plate, the head 11 of spindle 12, whenfast ened to the base-plate, may bebrought down Yflange projecting downwardly from 'saidb'asefirmly upon it, andyet notdraw dowllonthe' 1 anti-friction rollers, binding them together, so Y they cannot operate. f

.. Surrounding the perforation'lO in the baseplateV isa depression, 13. In saiddepressionY and contiguous to the perforation'are vsmall -l lugs'14, betweenwliich are' situated the side 6o ,projections or hammered portionsfl, of spin-y dle 12, whereby the Alatter is secured to the base-plate' and is prevented from' turning therein.

The base-plate, the flange, and boss arep'r'ef-vk erably castin one piece.v Having thusl described sire to secure by LettersPatentz l. In i a caster, thel combina fon, w-iththe 7o on, of a circular base-plate having an clon-Qn.

gated perforated boss,the perforation of which" extends through the base-plate, a peripheral plate and adapted to surround the annular ange on the housing-plate and having a, Space Y "l between them for the anti-friction rollers'and f v a headed spindle secured to the base-plate and passing through said perforated boss, its head f being adapted to bear on the endjof said boss,

vsubstantially as set forth.

2. In a caster,fthe combination,with a baseplate having an elongated perforated boss,gthe perforationextending through thebase-plate, of the floor-wheel housing hav-ing an, axial f perforation, a spindle securedto the base-plate and passing through saidperforated boss,`and a head on said spindle, adapted-to engagethe end of said bossout of contact with theihouvsing, substantially as set forth.

3. Ina caster, the combination, with the tion, of thebase-plate, alsolprovide'd-withan -95` axial perforation, a headed spindle` received' by said perforation, lugs on top of' the baseplate surrounding itsp'erforation, andk side projections on the spindle situated between? said lugs, substantially as and for the purpose 10Q`- set'fOrth.

my invention,the fol, i lowing is whatI claim as new therein and de-` f 

